CVE-2026-49942

7.3 HIGH
Published: June 04, 2026 Modified: June 08, 2026
View on NVD

Description

Net::CIDR::Set versions through 0.20 for Perl did not validate network masks. The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks. Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://metacpan.org/release/RRWO/Net-CIDR-Set-0.21/changes
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Release Notes
https://nvd.nist.gov/vuln/detail/CVE-2025-40911
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Third Party Advisory US Government Resource
https://nvd.nist.gov/vuln/detail/CVE-2026-45191
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Third Party Advisory US Government Resource

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.3 / 10.0
EPSS (Exploit Probability)
0.0%
15th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

rrwo